Healthier Banana Crumb Muffins

Ingredients (10)

• + 1 ½ cups all-purpose flour add to pantry
• + 1 teaspoon baking soda add to pantry
• + 1 teaspoon baking powder add to pantry
• + ½ teaspoon salt add to pantry
• ✓ 4 bananas, mashed
• + ¼ cup white sugar add to pantry
• ✓ 1 egg, lightly beaten
• ✓ ⅓ cup butter, melted
• + ⅓ cup packed brown sugar add to pantry
• + ⅛ teaspoon ground cinnamon add to pantry